'05 popping and losing power after 3rd gear

2005 DODGE MAGNUM
92,000 MILES • 5.7L • V8 • RWD • AUTOMATIC
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QUANSTROM321
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i have a slightly modded '05 Magnum R/T with straight pipe long tube headers ( rolling thunder exhaust ) and a Mopar cold air intake and a lowering kit and some other mods and lately I've noticed it losing power, and once i get past 3rd gear the car pops. it has a slap stick so its Auto/Man when i want. today also tied to do a burn out and the car was making a popping noise so i stopped trying to do a burn out wtf should i do because i love that car and it isn't performing right?
Apr 2, 2014 at 3:06 PM
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KNOWLEDGE IS POWER
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If the car revs fine in park or neutral and only has problems when you're driving or trying to do a burnout, then it sounds like the problem is probably in the transmission. Check your fluid for darkness and a burnt smell.
Apr 2, 2014 at 3:32 PM